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STOCK-BASED AWARDS (Tables)
6 Months Ended
Jun. 30, 2026
Share-Based Payment Arrangement [Abstract]  
Schedule of Stock Option Activity
A summary of stock option activity, excluding performance-based stock options (“PSOs”), for the six months ended June 30, 2026 was as follows:
Outstanding Options
Number of OptionsWeighted Average Exercise PriceWeighted-Average Remaining Contractual TermIntrinsic Value
(in thousands)
Balance as of December 31, 2025
2,030,874 $19.09 3.98$2,918 
Options exercised
(311,391)8.91 
Options canceled/forfeited
(101,933)45.03 
Balance as of June 30, 2026
1,617,550 $19.41 3.43$11 
Options vested and exercisable as of June 30, 2026
1,556,611 $17.71 3.39$11 
Schedule of Restricted Stock Units Activity
A summary of RSUs activity for the six months ended June 30, 2026 was as follows:
Restricted Stock Units
Time-Based SharesPerformance-Based SharesTotal SharesWeighted-Average Grant-Date Fair Value
Balance as of December 31, 2025
17,337,857 2,645,726 19,983,583 $27.86 
Granted5,114,901 43,504 5,158,405 $7.30 
Vested(4,100,489)(569,025)(4,669,514)$30.17 
Canceled/Forfeited(3,128,662)(905,877)(4,034,539)$24.87 
Balance as of June 30, 2026
15,223,607 1,214,328 16,437,935 $21.49 
Schedule of Stock-Based Compensation Expense
Total employee and nonemployee stock-based compensation expense for the three and six months ended June 30, 2026 and 2025, was classified in the condensed consolidated statements of operations and comprehensive loss as follows (in thousands):
Three Months Ended June 30,Six Months Ended June 30,
2026202520262025
Cost of revenue$603 $582 $1,624 $1,704 
Research and development25,584 34,195 63,269 69,016 
Selling, general and administrative15,761 21,542 39,444 13,114 
Workforce reduction charges
4,661 — 3,302 — 
Total$46,609 $56,319 $107,639 $83,834